4320423122131 has 4 divisors (see below), whose sum is σ = 4338965710872. Its totient is φ = 4301880533392.

The previous prime is 4320423122089. The next prime is 4320423122137. The reversal of 4320423122131 is 1312213240234.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4320423122131 - 2³¹ = 4318275638483 is a prime.

It is a super-2 number, since 2×4320423122131² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4320423122131.

It is not an unprimeable number, because it can be changed into a prime (4320423122137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9271294021 + ... + 9271294486.

It is an arithmetic number, because the mean of its divisors is an integer number (1084741427718).

Almost surely, 2^{4320423122131} is an apocalyptic number.

4320423122131 is a deficient number, since it is larger than the sum of its proper divisors (18542588741).

4320423122131 is a wasteful number, since it uses less digits than its factorization.

4320423122131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18542588740.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 4320423122131 its reverse (1312213240234), we get a palindrome (5632636362365).

The spelling of 4320423122131 in words is "four trillion, three hundred twenty billion, four hundred twenty-three million, one hundred twenty-two thousand, one hundred thirty-one".